If you are going there to buy groceries, you could just order from Garden Grocer instead. The website address is
www.gardengrocer.com. There is a huge list of groceries to choose from and the delivery charge is only $10. A lot of people on the DVC boards have ordered from this service and rave about it. Do a search on the DVC boards for Garden Grocer for more info. So this would definitely be cheaper than a taxi and way less time consuming.